The point directly over your head is called

Which quantities are scalars? choose all that apply a. distance b. speed c. acceleration d. velocity

You are traveling in a car going at a constant speed of 100km/h down a long, straight highway. you pass another car going in the same direction which is traveling at a constant speed of 80km/h. as measured from your car's reference frame this other car is traveling at −20km/h. what is the acceleration of your car as measured from the other car's reference frame? what is the acceleration of the other car as measured from your car's reference frame?

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?